Finding the Fourth Proportional to 990,937.08, 1,486,436.47 and 471,498.49
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Solution
The fourth proportional to 990,937.08, 1,486,436.47 and 471,498.49 is: 707,262.40
Step by Step Solution
- Step 1: Write the proportion equation
990,937.08 : 1,486,436.47 = 471,498.49 : x - Step 2: Convert to fraction form
990,937.08/1,486,436.47 = 471,498.49/x - Step 3: Cross multiply
990,937.08x = 1,486,436.47 × 471,498.49 - Step 4: Simplify right side
990,937.08x = 700,852,543,404.03 - Step 5: Solve for x
x = 700,852,543,404.03/990,937.08 - Step 6: Final answer
x = 707,262.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.